Added recent changes to history in preparation for release.
Added recent changes to history in preparation for release.

gras100/asks-oauthlib,jayvdb/requests-oauthlib,requests/requests-oauthlib,singingwolfboy/requests-oauthlib,jayvdb/requests-oauthlib,jsfan/requests-oauthlib,sigmavirus24/requests-oauthlib,elafarge/requests-oauthlib,abhi931375/requests-oauthlib,dongguangming/requests-oauthlib,lucidbard/requests-oauthlib